Home / 107,631.64-148,544.85-65,190.07

Finding the Fourth Proportional to 107,631.64, 148,544.85 and 65,190.07

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Solution

The fourth proportional to 107,631.64, 148,544.85 and 65,190.07 is: 89,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,631.64 : 148,544.85 = 65,190.07 : x
  2. Step 2: Convert to fraction form
    107,631.64/148,544.85 = 65,190.07/x
  3. Step 3: Cross multiply
    107,631.64x = 148,544.85 × 65,190.07
  4. Step 4: Simplify right side
    107,631.64x = 9,683,649,169.64
  5. Step 5: Solve for x
    x = 9,683,649,169.64/107,631.64
  6. Step 6: Final answer
    x = 89,970.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.